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MRCC radar is, in fact, the system that brings the SBS capability to the car. LIDAR gives the SCBS capability (pre-crash system at low speed, up to 30 km/h more or less).

I own a 2016 M3 which, according to Mazda EPC, should have VCM, but in fact the car does not have VCM (checked physically by me). When I retrofitted the MRCC system I did not install the VCM, I plugged the radar directly to the HS Can line and after some config trials I got it to work.

In my case I used a CX-3 radar and in this particular model the radar and the FSC camera are linked (checked also in MAZDA EPC). Once the correct camera was installed DTCs disappeared and all started to work as it should. But I think this only happens with that particular radar model. In M3/M6 I think there is not such dependency on between radar and FSC camera.

Maybe you can try to plug the radar as I did (without the VCM), and see if it works.

My IC config and yours are 100% equal, and with this config in my car is working (without VCM)


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Hello! I have read all your posts and successfully retrofitted MRCC to my Mazda6 GJ 2014. I have learnt a lot here, thanks! Now I am facing a problem: MRCC works perfectly, no DTCs, SBS is switched on in the menu and in ASBUILT, but SBS does not work. I mean, it does not warns or brakes. Furthermore, the SBS/MRCC display on the instrument cluster is blinking, and in MRCC mode the green indicator light also blinks. My ASBUILT setting are these:
07200417-BF05-70B4-204A
07200418-2845-F0BF-0665
07200423-0000-BF09-5066
Do you have any idea how to solve this problem?
 

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One question for those that made the MRCC to work.

With the activation of cruise system I got also the DRSS system and the SBS, but if I try to activate the FOW bit then it throws tons of DTCs. I get the FOW menu in addition to DRSS menu on CMU but it is not working.

Can both systems work together?, or if you have DRSS activated is not possible to get FOW?.

I have tried several bit combinations but none makes the FOW to work without DTCs.

Any idea?

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Dear fcorivas!
Have you succeeded with this issue? I am also facing the same. Thanks a lot!
 

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Hi,

not, unfortunately not, I tried many combinations but none of them worked to get both features activated simultaneously.

So finally I stayed with the DRSS and SBS.

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Hello, thanks for the answer! So in your car, SBS works perfectly, it brakes in emergency situation? In mine, only MRCC brakes, SBS does not do anything.
Also, when MRCC is on, the green indicator led and the info display vibrates. Does it happen to you, or do you have a solution to this?
 

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Yes, but what exactly i need to rewrite? I have only original AsBuilt data
Dont have cx9 data but is ig similar to
Finally I have MRCC in my Mazda CX-5 2019!!!!!! The problem was in the line 23. In my case, in adittion of the line 17 and 18, I had to change line 23. Everything is working as expected. To help another people my original lines were the following:
7200417BF0510000016
7200418000000BF0608
72004230000BF092137
And the correct ones to MRCC is the following:
7200417BF0572B4204C
7200418600F00BF0677
72004230000BF095167
thanks to all the people who contributed in this forum in particular to:
rixm6
luyenok
Diamonds_T (I used the data of block 4 of his mazda)
MrBen
acastrolee
Cilianunlock

This feature is amazing and also it is the closest to the autonomous driving!!!
 

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I can't. When i put new values and try to save them forscan show me a message: wrong values
Actual
7200417BF0572B4204C
7200418600F00BF0677
72004230000BF095167
I try to change for this
7200417BF0510000016
7200418000000BF0608
72004230000BF092137
 
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